<template>
  <view
    class="flex"
    :class="[
      _disabled ? props.disabledClass : '',
      tmCheckedBoxDir == 'row' ? 'flex-row' : '',
      tmCheckedBoxDir == 'customCol' ? 'flex-1' : '',
    ]"
  >
    <view @click="hanlerClick" class="flex flex-row flex-row-center-start flex-1">
      <tm-sheet
        parenClass="flex-shrink"
        class="flex-shrink"
        v-if="props.custom"
        :eventPenetrationEnabled="true"
        :linear="props.linear"
        :linearDeep="props.linearDeep"
        :followTheme="props.followTheme"
        :followDark="props.followDark"
        :dark="props.dark"
        :shadow="props.shadow"
        :width="props.size"
        :height="props.size"
        :text="((!props.indeterminate && !_checked) || _disabled) && !props.outlined"
        :border="props.border"
        :borderStyle="props.borderStyle"
        :transprent="props.transprent"
        :padding="[0, 0]"
        :margin="props.margin"
        :color="_disabled ? 'white' : props.color"
        :round="props.round"
        _class="flex-row flex-row-center-center"
        :outlined="props.outlined"
        _style="transition:background-color 0.24s"
      >
        <view v-if="!props.closeAni">
          <tm-translate
            :duration="100"
            v-if="_checked && !props.indeterminate"
            name="zoom"
            style="line-height: 1"
          >
            <tm-icon :font-size="props.size * 0.6" :name="props.icon"></tm-icon>
          </tm-translate>
          <tm-translate
            v-if="props.indeterminate"
            :duration="100"
            name="zoom"
            style="line-height: 1"
          >
            <tm-icon :font-size="props.size * 0.6" name="tmicon-minus"></tm-icon>
          </tm-translate>
        </view>
        <view v-if="props.closeAni">
          <tm-icon
            v-if="_checked && !props.indeterminate"
            :font-size="props.size * 0.6"
            :name="props.icon"
          ></tm-icon>
          <tm-icon
            v-if="props.indeterminate"
            :font-size="props.size * 0.6"
            name="tmicon-minus"
          ></tm-icon>
        </view>
      </tm-sheet>
      <view class="flex-1">
        <slot name="default" :checked="{ checked: _checked }">
          <tm-text
            :userInteractionEnabled="false"
            :font-size="props.fontSize"
            :label="props.label"
          ></tm-text>
        </slot>
      </view>
    </view>
  </view>
</template>
<script lang="ts" setup>
/**
 * 复选框
 * @description 复选框可以单独使用，也可以配合复选框组tm-checkbox-group使用。
 */
import tmSheet from "../tm-sheet/tm-sheet.vue";
import tmIcon from "../tm-icon/tm-icon.vue";
import tmText from "../tm-text/tm-text.vue";
import tmTranslate from "../tm-translate/tm-translate.vue";
import tmCheckboxGroup from "../tm-checkbox-group/tm-checkbox-group.vue";
import { custom_props } from "../../tool/lib/minxs";
import {
  ref,
  computed,
  watch,
  inject,
  getCurrentInstance,
  PropType,
  ComponentInternalInstance,
  ComputedRef,
  onMounted,
  onUnmounted,
  onBeforeUnmount,
} from "vue";
const CheckboxGropup = ref<InstanceType<typeof tmCheckboxGroup> | null>(null);
const proxy = getCurrentInstance()?.proxy ?? null;
const emits = defineEmits(["update:modelValue", "change", "click"]);
const props = defineProps({
  ...custom_props,
  /**
	 * 是否跟随全局主题的变换而变换
	 */
  followTheme: {
    type: [Boolean, String],
    default: true,
  },
  size: {
    type: Number,
    default: 42,
  },
  //为false时将隐藏所有内容，只显示插槽内容，但点击插槽还是会触发选选择状态。
  custom: {
    type: Boolean,
    default: true,
  },
  outlined: {
    type: Boolean,
    default: false,
  },
  transprent: {
    type: Boolean,
    default: false,
  },
  round: {
    type: Number,
    default: 2,
  },
  border: {
    type: Number,
    default: 2,
  },
  //选项值，选中后返回的值。
  value: {
    type: [String, Number, Boolean],
    default: true,
  },
  /**
   * v-model双向绑定，如果选中后以数组形式给出value值。
   */
  modelValue: {
    type: [String, Number, Boolean],
    default: false,
  },
  label: {
    type: [String, Number],
    default: "",
  },
  //默认是否选中状态。不受上方的modelValue控制，直接选中。
  defaultChecked: {
    type: [Boolean],
    default: false,
  },
  //选中前的勾子。返回false将阻止选中。也可以返回 Promise异步
  beforChecked: {
    type: [Function, String, Boolean],
    default: () => {
      return false;
    },
  },
  disabled: {
    type: Boolean,
    default: false,
  },
  fontSize: {
    type: Number,
    default: 28,
  },
  //半选中状态。
  indeterminate: {
    type: [Boolean, String],
    default: false,
  },
  //是否关闭动画 ，对于大批量的数据时，建议关闭动画。
  closeAni: {
    type: [Boolean, String],
    default: true,
  },
  /**
   * 自定义选中的图标名称
   */
  icon: {
    type: String,
    default: "tmicon-check",
  },
  disabledClass: {
    type: String,
    default: "opacity-5",
  },
  margin: {
    type: Array as PropType<number[]>,
    default: () => [16, 8],
  },
});
let timed: any = NaN;
const _checked = ref(props.defaultChecked ?? false);
const _groupCheckedVal: ComputedRef<Array<string | number | boolean>> = inject(
  "tmCheckedBoxVal",
  computed(() => [])
);
const tmCheckedBoxDisabled = inject(
  "tmCheckedBoxDisabled",
  computed(() => false)
);
const tmCheckedBoxMax = inject(
  "tmCheckedBoxMax",
  computed(() => false)
);
const tmCheckedBoxDir = inject(
  "tmCheckedBoxDir",
  computed(() => "row")
);
const _disabled = computed(() => props.disabled || tmCheckedBoxDisabled.value);

function vailChecked(val?: Array<string | number | boolean>) {
  let checked_val = false;
  let val_self: Array<string | number | boolean> =
    typeof val === "undefined" ? _groupCheckedVal.value : val;

  if (
    props.modelValue === props.value &&
    typeof props.value !== "undefined" &&
    props.value !== "" &&
    props.modelValue !== ""
  ) {
    checked_val = true;
  }
  // let index = val_self.findIndex((el) => el === props.value);
  if (val_self.includes(props.value)) {
    checked_val = true;
  }
  return checked_val;
}
if (vailChecked()) {
  _checked.value = true;
  emits("update:modelValue", props.value);
}
async function hanlerClick() {
  emits("click");
  if (_disabled.value) {
    return;
  }
  if (tmCheckedBoxMax.value && !_checked.value) {
    uni.showToast({ title: "超最大选择", icon: "error" });
    return;
  }
  if (typeof props.beforChecked === "function") {
    uni.showLoading({ title: "...", mask: true });
    let p = await props.beforChecked();
    if (typeof p === "function") {
      p = await p();
    }
    uni.hideLoading();
    if (!p) return;
  }
  _checked.value = !_checked.value;
  if (_checked.value) {
    emits("update:modelValue", props.value);
    if (parent) {
      parent.addKey(props.value);
    }
  } else {
    emits("update:modelValue", false);
    if (parent) {
      parent.delKey(props.value);
    }
  }
  emits("change", _checked.value);
}
watch(
  [() => props.modelValue, () => props.value, () => _groupCheckedVal.value],
  () => {
    _checked.value = vailChecked();
  },
  { deep: true }
);

const _blackValue = _groupCheckedVal.value;
//父级方法。
let parent: any = proxy?.$parent;
while (parent) {
  if (parent?.checkBoxkeyId == "tmCheckBoxGroup" || !parent) {
    break;
  } else {
    parent = parent?.$parent ?? undefined;
  }
}
if (parent) {
  parent.pushKey(props.value);
}

defineExpose({ hanlerClick });
</script>
